SWITCH_ROOT(8) System Administration SWITCH_ROOT(8)
switch_root - switch to another filesystem as the root of the mount
switch_root newroot init [arg...]
switch_root moves already mounted /proc, /dev, /sys and /run to newroot
and makes newroot the new root filesystem and starts init process.
WARNING: switch_root removes recursively all files and directories on
the current root filesystem.
Display help text and exit.
Display version information and exit.
switch_root returns 0 on success and 1 on failure.
switch_root will fail to function if newroot is not the root of a
mount. If you want to switch root into a directory that does not meet
this requirement then you can first use a bind-mounting trick to turn
any directory into a mount point:
mount --bind $DIR $DIR
chroot(2), init(8), mkinitrd(8), mount(8)
Peter Jones <firstname.lastname@example.org>
Jeremy Katz <email@example.com>
Karel Zak <firstname.lastname@example.org>
The switch_root command is part of the util-linux package and is avail-
able from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux June 2009 SWITCH_ROOT(8)
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